P. 105
nanobox | tangerine User Manual
Dec 11, 2023
IMPACT OF MODULATION ON PARAMETER VALUES
When you apply modulation to a parameter, each modulation source contributes to the
modulation of the parameter’s current value. The degree of that modulation depends on:
■ the value range of the parameter being modulated,
■ the values that the modulation Source produces, and
■ the modulation Amount setting for the Source.
Each pad parameter has a value range suitable for its function. Some For example:
■ The Filter parameter’s value range is -100% to +100%, with 0.0% at the center of its range.
■ The Res parameter’s value range is 0.0% to 100%, with 50.0% at the center of its range.
Modulation source value ranges also differ significantly. Some modulation sources have
uni-polar “throws” and cover a range of positive values, while others are bipolar and cover a
range of negative and positive values around a mid-point. For example
■ MIDI Continuous Controllers and MIDI Note velocity all provide values in the range of 0-
127.
■ MIDI Note numbers have a range of 0-127, but when using KEY as a modulation source,
64 (C4) corresponds to a center point (0), notes below 64 (C4) correspond to negative
values, and notes above 64 correspond to positive values.
■ MIDI Pitch-wheel has a center position that corresponds to an unshifted pitch and lower
and higher positions that correspond to negative and positive pitch shifts.
■ The tangerine’s LFO can produce uni-polar or bipolar values depending on the LFO
waveform.
The tangerine maps the value range of these modulation sources to a range of the
parameter’s values as follows:
■ the middle of the modulation source’s range maps to the current parameter value,
■ the modulation source’s lowest value maps to the current parameter value minus the
modulation Amount, and
■ the modulation source’s highest value maps to the current parameter value plus the
modulation Amount.
For example, if the Filter parameter is set to 20%, and you use PTCH as the modulation
source, and set the Modulation Amount to 15%, then the lowest Pitch Wheel position would
map to 5% (20% - 15%), and the highest Pitch Wheel position would map to 35% (20% + 15%).